$199 Cheap Flights from Moline (MLI) to Seattle (SEA)

Popular airlines from Quad City Intl. Airport (MLI) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Moline to Seattle (MLI-SEA)

Prices were available within the past 7 days and start at $199 for one-way flights and $363 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Delta
United
United
United
United
United
United
United
United

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much does a flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $199 and cheap return flights from $363 Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights generally range between $342 and $1022, and roundtrip flights usually range from $415 to $1403. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
April is the cheapest month to fly from Moline (MLI) to Seattle (SEA), with average round-trip fares around $378. This price is about 23% lower than the average for the year, as spring often sees a dip in travel demand. Other budget-friendly months to consider are January and March.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter MLI to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
United is one of the cheapest airlines offering connecting flights from Quad City Intl. (MLI) to Seattle - Tacoma Intl. (SEA), with round-trip tickets starting from around $288 with a layover in O'Hare Intl. (ORD). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When flying from Moline (MLI) to Seattle (SEA), April and January are your best bets, with average return flight prices around $378. April brings beautiful spring weather, while January can be quieter, allowing for a more relaxed travel experience. Both months offer a good mix of price and pleasant conditions.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Quad City International Airport (MLI) to Seattle - Tacoma International Airport (SEA) typically leaves at around 5:00 AM. This flight is operated by American Airlines. Departing early can give you a head start on your day in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Moline, IL (MLI) to Seattle, WA (SEA) are from 6am to 9am. This accounts for around 39% of total traffic. Many major carriers, including American Airlines and United Airlines, offer flights during this window. Many travelers prefer this timing to maximize their time in Seattle.
How long does it take to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from MLI to SEA with a connection usually takes about 7 hours 20 minutes, traveling roughly 1,610 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly first class between MLI and SEA. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Quad City Intl. (MLI)?
From Quad City Intl. (MLI), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Denver Intl. (DEN) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Quad City Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$363
Distance
1609 mi

*Flight schedules are subject to change.

*Available to One Key members.